Network hub



FIG. 1 is a front perspective view of a network hub showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left-side elevation view thereof;

FIG. 5 is a right-side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The dashed broken lines in the figures illustrate portions of the network hub that form no part of the claimed design.

The dot dash lines in the figures define the boundary of the claim, which extends to the boundary but does not include the boundary. 

CLAIM The ornamental design for a network hub, as shown and described. 